名校
解题方法
1 . 已知
三个内角
的对边分别为
,若
,且
.
(1)求
的值;
(2)若
, 求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a99bb77a5ec8629e26b0329a8a21db2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d2013e13affac5bbec7f2ac194d2225.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acd302fa2085cf19bd03f4685866a8df.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2023-07-30更新
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3卷引用:辽宁省朝阳市建平县实验中学2023-2024学年高二上学期第一次月考数学试题